Pxgcess for rendering paper



M ree 'Pn rnnrOfF I E- ROBERfiF'e i-OWREY, or sALEM, new Yours .zaas aaaaass Fon' RENDERING PAll-LR, CLOTH, AND' THE LlKE FIRE AND WATER- PROOF.

- Specification forming part of Letters Patent- No. 1,892, dated December 10, 1867'.

To all lvhont it may concern.-

y of Salem, in the county of "Washington and State of New York, have invented certain new and useful Improvements in Rendering Articles Fire andWater Proof; and I do hereby dcclarethat the following is a full, clear, and

g.- exact description thereof, reference being had unto the accompanying drawings, making part of this specification, and to the letters of reference marked thereon, like letters indicating like parts Wherever they occur.

To enable others skilled in the art to con- 1 strii'ctand use my invention, I will proceed to describe it.

My invention consists in a novel process of,

treating fibrous and similar materials for rendering them both fire and water proof.

.Thisinvcntlon is'intendcd to be applied to v cloth or paper, and all similar fabrics or materia'l, either before or after the same has been (manufactured.

In the first place, I saturate or otherwise treat thematerial with liquid starchthat is,

starch dissolved in watc -anti then subject it afterward to the action of acompound 'consisting-of milk, one pint; vinegar. one pint;

and qllickllme, pulverized, one pound, all

added together and left until the lime is thoroughly slaked, when it will be found to have formed a pastymass.

This compound may be applied to thematerial in any convenient manner, or, if pre-' ferred, as in some cases it will be, as being -more convenient, this compoundfland .the-

starch may be united and then applied to the fabric or material, either before 'or afterthe material is manufactured.

In the manufacture of paper for all thevarious purposes to which it may be adapted, it will be most convenient to apply the starch and other ingredients forming the compound to'the pulp previous to its being formed into sheets.

In the manufacture of cloth and all knitted, woven, or felted fabrics, it may be applied-to the yarn or thread previous to its being woven Of-klfllt, or to the wool before it is felted.

Paper orbloth already manufactured may he treated the compound, andthey thus rendered fire and later proof in a very simple and nexpensive manner.

In case it is desired to treat cloth iutended tobe. used for wearing-apparel,- and in v'vhich case it is desired to leave the pores open, the

compound will be rendered thinner or-more liquid by the applieationjof more water and subjecting the .cloth to a pressure or squeez ing, for the purposeof removing the surplus, which would otherwise tend to fill up and close the pores or interstices,

It is obvious that the invention may be applied to garments already made. up, or to all such are usually starchcd, byeither adding the lime compound to the starch before apply-- ing it to the garments or by treating them with it after the starch has been applied, in the,

usual manner-. v This forms an exceedingly cheap and con venient means of lendefring articles fire and Waterproof, the'in gredients'bein g always ac- -mal glue, or their known substitutes, in the proportion of four ounces of soap or similar extraetive'matter, two ounces of yeerine or saccharine matter, or of both combined-two ounces, dissolved in from twoto four quarts of water; or, inlieu of the starch, gunr arabic, gum-senegal, 'dextrine, caseine, albumen, gluten, or a mixture of two. or more of these ingredients may be used, and the material then treated with a lime'solutiom'as be fore described. So, also, resinous gums may bedissolved in alkalies and used as a substitute for the starch;

The lime compound mixed withthe g'elatinous material mayalsobe used in the form of a paint or paste for coating. wood, leather,

. stones, metals, or other solid substances, either wilh or without the admixture of earthy sub,- stanees to give it a body.

Vegetable fiber, when treated with the compound, niay be manufactured-into an almost endless variety of articles for use, and also for' ornament.

In case it is desired to render the article soft and pliable, a larger proportion of the glycer v terial will be used.

ine or eaeeharine matter or of the soapy me.-

' It, of eourse,wi1l be understood that in preparing the lime solution, acetic acid or any equivalent may be-used. instead of the vinegar, and that instead of the milk anyknown substitutemay be used and. the result still be the same.

. Having thns described my invention, what I elaim is-.-

The pi' oe'ess, substantially herein de-- scribed, of treating fibrous anti othermaterials 'for rendering them fire and water proof R. 0-. LOWREY.

Witnesses! A W. G. DODGE,

l T. DOD V 

